210111221001201 has 24 divisors (see below), whose sum is σ = 303357417664896. Its totient is φ = 129298542909120.

The previous prime is 210111221001191. The next prime is 210111221001211. The reversal of 210111221001201 is 102100122111012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (210111221001191) and next prime (210111221001211).

It is not a de Polignac number, because 210111221001201 - 2¹⁴ = 210111220984817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210111221001211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107724616 + ... + 109657718.

It is an arithmetic number, because the mean of its divisors is an integer number (12639892402704).

Almost surely, 2^{210111221001201} is an apocalyptic number.

It is an amenable number.

210111221001201 is a deficient number, since it is larger than the sum of its proper divisors (93246196663695).

210111221001201 is a wasteful number, since it uses less digits than its factorization.

210111221001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147513 (or 2147500 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210111221001201 its reverse (102100122111012), we get a palindrome (312211343112213).

The spelling of 210111221001201 in words is "two hundred ten trillion, one hundred eleven billion, two hundred twenty-one million, one thousand, two hundred one".